National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service


Latitude: 39.03º NLongitude: 123.13º WElevation: 498 Feet
Location: Mendocino County in CaliforniaRiver Group: Russian Napa
Monitor Stage: N/A Flood Stage: 15.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
 Most Recent 5 Years
Feb 2, 2021
Jan 16, 2020
Feb 27, 2019
Apr 6, 2018
Jan 11, 2017
 Historical High Stage/Flow Events (Period of Record - Oct 1939 to Present) - Ranked by Flow
Dec 22, 1955
Dec 22, 1964
Jan 16, 1974
Dec 31, 2005
Feb 17, 1986
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ113)
Today: Cloudy. Patchy valley fog in the morning. Slight chance of rain showers in the afternoon. Highs 48 to 58. Southeast wind around 20 mph.

Tonight: Rain in the evening, then rain showers overnight. Breezy. Lows 36 to 46. Southwest wind 20 to 25 mph.

Sunday: Rain showers likely. Highs 42 to 52.

Sunday Night: Partly cloudy. Lows 29 to 39.

Monday: Sunny. Patchy frost. Highs 50 to 60.

Monday Night through Tuesday Night: Partly cloudy. Lows 33 to 43. Highs 50 to 64.

Wednesday and Wednesday Night: Mostly clear. Highs 54 to 64. Lows 33 to 43.

Thursday: Sunny. Highs 59 to 69.

Thursday Night and Friday: Partly cloudy. Lows 35 to 45. Highs 56 to 69.
Impacts - E19 Information
15.0 FeetFlooding of Highway 175 is expected at the approaches to the Russian River bridge. Expect minor flooding of crop land on the right bank of the river.
17.0 FeetSignificant flooding of Highway 175 at the approaches to the Russian River bridge. Minor flooding of Highway 222 near Ukiah, and in crop land along the left and right banks of the Russian River near Hopland.
18.0 FeetFlooding of Highway 222 near Ukiah. Secondary roads in low-lying areas will be flooded in the Hopland, Ukiah, and Talmage areas.
20.0 FeetFlooding of low-lying structures east of the railroad tracks near Hopland.
21.0 FeetFlooding of low-lying structures just west of the railroad tracks near Hopland.
23.0 FeetFlooding of farm land, buildings and low-lying homes in the Hopland area. Flooding will begin in the Ukiah and Talmage areas.
24.0 FeetFlooding of low-lying structures and farm land in the Hopland, Ukiah, and Talmage areas. Many secondary roads may also be flooded. Severe bank erosion is possible.
25.0 FeetSevere bank erosion is likely with widespread flooding of farm land, buildings and low-lying homes in the Hopland, Ukiah, and Talmage areas. Many secondary roads will be flooded. This level of flooding caused 6100 acres to flood in February 1940.
26.0 FeetWidespread major flooding will occur. Primary roads and some bridges will flood.
27.0 FeetWidespread major flooding. At the forecast level, over 500 homes and farm buildings were damaged on December 22,1955. 6300 acres of land were inundated by flood waters. All persons in the area are urged to move to high ground and take appropriate action to protect life and property.
28.0 FeetDisastrous flooding will occur. Many homes and businesses could be damaged. Many primary and secondary roads and some bridges could be washed out.
30.0 FeetDisastrous flooding. Many homes and businesses damaged. Numerous primary and secondary roads and some bridges could be washed out. This is equal to the highest known stage, which occurred in December 1937. 6500 acres were inundated by flood waters.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Eureka Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.